CTS55 Operator TrainingDigital Radio Tester CTS for mobile phones Compact, modular testers Fast and precise measurements for service and adjustment Brilliant TFT colour display Menus in six different languages Connectors for external monitor and keyboard to make operation even more convenient Problem-free upgrading of existing units for GSM900/1800/1900 Measurements to GSM recommendations Quick test (fast go/nogo test) Versatile autotest Manual test for exact fault location Module test (RF measurements without signalling) ……